Ventilating flue cap



Dec. 5, 1933. w. A. BRIEL 1,933,131

VENTILATING FLUE CAP Filed Aug. 11, 1931 Patented Dec. 5, 193?: 7 I v entree, STATES rarest owes;

Application August 11, 1931. Serial No. 556,455

' '5 Claims. "(01. 126-316) This invention relates to that generalclass of It is customary to provide a flue cap or stop tov devices used as a flue cap or stopper to close close the opening 3 in those seasons of the year the opening into the chimney or flue which, when the stove or heater is not used, during in cold weather, accommodates the smoke or which periodsflthe stove or heater may be re- -5 stove pipe from a SJOVE or heater. moved from the room. v 60 The object or my invention is to provide an My improved flue capor stopper is shown improved flue cap, which may be ornamented at 4, being provided" with triangular shaped to enhance its appearance if desired, that will sides 5, a rectangular shaped top 6, and an inprovide for ventilation when the cap is used clined front or face 7. The front 7 may be of 10 in those seasons when the stove or heater is disthe square shape shown and provided with any connected, the purpose being to afford means suitable design, picture or ornamentation to enwhereby a draft may enter the chimney or flue, hance its appearance. The width of the cap thus taking oi the hot air from the room and between the sides 5 is greater than the diameter effecting lowering the temperature so that the of the flue hole 3 and the vertical edges 8 of room will be cooler throughout the day and said sides lie flat against the wall or chimney 1, 70

nightas the case may be. The top 6 is provided with Another object is to provide an improved one or more openings 9, covered by a suitable flue cap which, aside from its retaining means, screen or screens 10. As shown, there are a will be wholly located. inside of the room. plurality of independent openings 9 but it will In carrying out my invention, I-provide a be understood that a single opening may be flue cap of novel construction adapted to be wholsubstituted and covered with a single screen.

1y located inside of the room and having screen The purpose of the screen or screens is to serve ventilating openings in its top, and also proas a barrier between the air in the room and in vided with adjustable inherently springy holders the chimney to prevent down drafts in the or bails which can be inserted in the flue for chimney from bringing soot, dust, etc. into the 8G the purpose of holding the cap in position to room and also to prevent the entry of bats into permit the draft or ventilating openings to the room. function while, at the same time, efiectually The natural draft created by the flue 2 draws closing the flue opening so far as the appearthe warmer air from the upper part of the room -ance is concerned. down through the opening or openings 9, the 85 Unlike earlier flue caps or stoppers, my imopening3 and into the chimney, thus tending to proved cap, while covering the flue so that it keep the room cooler in hot weather than is presents no unsightly appearance, leaves the flue possible with flue caps or stoppers which snugly open for the admission of the heated air diving flt against the stove pipe opening 3 and prevent down from the upper part of the room and thus draft of this character from taking place.

eiTectua-lly permits the flue or chimney to set up One or more inherently flexible bow-shaped a natural draft which carri s off the air from bails or holders 11,which are hinged at 12 to the room, rendering it cooler and cleaner with, the inside of the front 7, protrude into the hole out possibility of soot being blown from the 3, or the thimble or pipe section or bushing chimney into the room, and without soot being therein and by frictionally contacting therewith, 9

collected by the cap. retain the cap in position.

In the m nyin drawing: By hinging the bail or bails 11 at 12, they Figure 1 is a vertical section showing the cap naturally adjust themselves when the cap is use; placed in position so that the cap is better held 2 is a horizon l t n hro h h c p in position. I have also found-that providing When in an two of these resilient bails 11, located one above Fig. 3 is a detail perspective view of the the other, a superior holding action of the cap pis obtained.

The brickwork of thg chimney flue pp The arrows indicate the down draft from the 05 at 1 and the interior of the flue is Shown .8115 upper part of the room whereby the heated air is as usual, the chimney has an opening 3 for the drawn off by the flue 2 through the openings 9- reception of the stove pipe or smoke flue from what; I l im is; the stove or heater which is used in the room 1, In combination t a flue Opening, a

n cold Weather- The Ceiling 0f the 1@0111 hpiike flue cap having vertically extending sides pears at I provided with straight rear edges adapted to lie against that wall of the flue which faces the inside of the room and provided with a front connecting said sides and with a top located above the flue opening so as to be inaccessible to soot, said top having a ventilating opening, and a bow-shaped bail whose ends are hinged to the rear face of the front and which is adapted to be inserted in the flue opening.

2. In combination with a flue opening, a boxlike flue cap having vertically extending sides provided with straight rear edges adapted to lie against that wall of the flue which faces the inside of the room and provided with a front con necting said sides and with a top which has a ventilating opening, said top being disposed in general horizontal position above the flue opening so as to be inaccessible to soot, and said front being downwardly inclined from the top, and a bow-shaped bail whose ends are hinged to the rear face of the front and which is adapted to enter the flue opening for the purpose of retaining the cap in position.

3. In combination with a flue opening, the herein described box-like ventilating cap for the flue opening comprising triangular side walls which are widest at their tops, and have vertical rear edges adapted to lie against opposite sides of the flue opening which faces the inside of the room, a top which connects said triangular side walls above the flue opening and is provided with an opening for ventilating purposes which is inaccessible to soot, a downwardly inclined front connecting said side walls, and a bowshaped bail whose ends are hinged to the rear face of the front and adapted to enter the flue opening for the purpose of retaining the cap in position, said cap constituting a diving flue by which the warmer upper air may be drawn down through the top and into the flue opening while said cap serves as a cover for the flue opening.

4. In combination with a flue opening, a flue cap covering the flue opening and having an upper part located above the flue opening, said upper part being provided with a ventilating opening disposed above the flue opening, and means for holding the cap in position.

5. In combination with a flue opening, a flue cap covering the flue opening and having an upper horizontal part located above the flue opening and provided with a ventilating opening disposed above the flue opening, and means for holding the cap in position.

WILLIAM AUGUST BRIEL. 

